Engine Controls - Revised A4, A7, Code 54 (Relay Wiring)

9216chevy01

Number: 89-32O-6E

Section: 6E

Date: October 1990

Coporate Bulletin No.: 016534


Subject: DRIVEABILITY AND EMISSIONS - REVISED FUEL PUMP RELAY HARNESS LABELING


Model and Year: 1989 CAPRICE WITH 4.3L, 5.0L AND 5.7L ENGINES














TO: ALL CHEVROLET DEALERS

The attached pages serve to update DRIVEABILITY AND EMISSIONS (SECTION 6E2) of the 1989 4.3L (VIN Z), 5.0L (VIN E), and 5.7L (VIN 7) "B" Carline Service Manuals.

To reflect changes with fuel pump relay harness connector labeling, please update the following service manual areas for the above listed service manuals.

Figure A-4, ECM Wiring Diagram 4.3L (VIN Z) (3 of 3)

Figure A-4, ECM Wiring Diagram 5.0L (VIN E) and 5.7L (VIN 7) (3 of 3)

Figure A-7, Fuel System Diagnosis

Code 54, Fuel Pump Circuit